* Gets the severity level of this problem.
     *
     * @return the severity level of this problem, never {@code null}
     */
    @Nonnull
    Severity getSeverity();

    /**
     * The different severity levels for a problem, in decreasing order.
     *
     * @since 4.0.0
     */
    @Experimental
    enum Severity {
        FATAL, //
        ERROR, //
        WARNING //
    }

/**
 * Trans2 QueryPathInformation response message for file metadata queries.
 * This class handles the response from a TRANS2_QUERY_PATH_INFORMATION request,
 * returning various file information levels based on the requested information level.
 */
public class Trans2QueryPathInformationResponse extends SmbComTransactionResponse {

    private final int informationLevel;
    private FileInformation info;

    /**

 * the problem.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ModelProblem {

    /**
     * The different severity levels for a problem, in decreasing order.
     */
    enum Severity {
        FATAL, //
        ERROR, //
        WARNING //
    }

    /**
     * Version
     */
    enum Version {

 * with proper error context and recovery information.
 */
public class SmbException extends CIFSException {

    private static final long serialVersionUID = 1L;

    /**
     * Error severity levels
     */
    public enum Severity {
        RECOVERABLE, // Can retry the operation
        TRANSIENT, // Temporary error, retry after delay
        PERMANENT, // Operation cannot succeed

            assertThrows(NullPointerException.class, () -> {
                buffer.size();
            });
        }

        @ParameterizedTest
        @DisplayName("Should handle various referral levels")
        @ValueSource(ints = { 0, 1, 2, 3, 4, 5, 255, 256, 32767, 65535 })
        void testConstructorWithVariousReferralLevels(int maxReferralLevel) {
            String path = "\\\\test";

        byte[] challenge = { 1, 2, 3, 4, 5, 6, 7, 8 };
        byte[] hash = auth.getAnsiHash(challenge);
        assertNotNull(hash);
        // getAnsiHash always returns 24 bytes for all lmCompatibility levels
        // (getPreNTLMResponse, getNTLMResponse, or getLMv2Response all return 24 bytes)
        assertEquals(24, hash.length);
    }

    // Test getUnicodeHash behavior based on static LM_COMPATIBILITY setting

        return problemsReportedFor(BuilderProblem.Severity.values());
    }

    /**
     * Returns count of problems reported for given severities.
     *
     * @param severities the severity levels to count problems for
     * @return the total count of problems for the specified severities
     */
    int problemsReportedFor(BuilderProblem.Severity... severities);

    /**

## Dependency Injection { #dependency-injection }

Using `BackgroundTasks` also works with the dependency injection system, you can declare a parameter of type `BackgroundTasks` at multiple levels: in a *path operation function*, in a dependency (dependable), in a sub-dependency, etc.

package jcifs.smb1.smb1;

import java.io.UnsupportedEncodingException;
import java.util.Date;

import jcifs.smb1.util.LogStream;

class Trans2FindFirst2Response extends SmbComTransactionResponse {

    // information levels

    static final int SMB_INFO_STANDARD = 1;
    static final int SMB_INFO_QUERY_EA_SIZE = 2;
    static final int SMB_INFO_QUERY_EAS_FROM_LIST = 3;
    static final int SMB_FIND_FILE_DIRECTORY_INFO = 0x101;

## **FastAPI**'s `OAuth2PasswordBearer` { #fastapis-oauth2passwordbearer }

**FastAPI** provides several tools, at different levels of abstraction, to implement these security features.

In this example we are going to use **OAuth2**, with the **Password** flow, using a **Bearer** token. We do that using the `OAuth2PasswordBearer` class.

/// info